Strong brine desalination device for green hydrogen energy industrial chain utilization

Abstract

The invention discloses a strong brine desalination device for green hydrogen energy industrial chain utilization, which relates to the technical field of strong brine desalination and comprises an evaporation tank, a condenser, a pure water collection barrel and a preheated strong brine temporary storage barrel, an upper mounting rack and a lower mounting rack are fixedly mounted in the evaporation tank; the upper end of the deformable heating pipe is rotationally connected with the upper mounting frame, and the lower end is fixedly connected with the lower mounting frame; the heating device further comprises a driving shaft vertically installed in the evaporation tank, the driving shaft is driven by a motor installed on the top of the evaporation tank, and a linkage control mechanism is arranged between the driving shaft and the deformable heating pipe. The non-contact self-cleaning technology is adopted, the deformable heating pipe is periodically twisted through the driving shaft to generate high-frequency micro-deformation, so that salt scales on the surface of the deformable heating pipe are broken and automatically fall off under the action of alternating stress waves, and a mechanical scraper or a chemical reagent does not need to make contact with the surface of a pipe in the whole process; and the effects of zero mechanical damage and no chemical corrosion on the surface of the heating pipe are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concentrated brine desalination, and in particular to a concentrated brine desalination device for green hydrogen energy industry chain utilization. BACKGROUND

[0002] In the current concentrated brine desalination technology, the multi-effect distillation (MED) and low-temperature multi-effect distillation (LT-MED) are widely used in the electrolytic water hydrogen production link in the green hydrogen industry chain due to low energy consumption and high water quality. The core heating component of such devices is usually a fixed metal heating tube (such as a titanium alloy tube), which indirectly heats the concentrated brine through steam or heat medium. However, the high concentration of salt (such as NaCl, MgCl2, etc.) in the concentrated brine is prone to forming a hard crystalline layer (salt scale) on the surface of the heating tube during evaporation, resulting in the following technical problems: heat efficiency decay: for every 1mm increase in salt scale thickness, the heat transfer coefficient decreases by about 20%~30%, significantly increasing energy consumption; equipment life shortening: traditional scraping descaling requires shutdown operation, and the mechanical scraper is prone to scratching the surface of the heating tube, accelerating corrosion; high maintenance cost: manual chemical cleaning requires the use of strong acid (such as HCl), generating chlorine-containing wastewater, which conflicts with the low-carbon and environmentally friendly requirements of the green hydrogen industry.

[0003] In the prior art, the improvement schemes for heating tube descaling mainly include: Chemical cleaning method: requires periodic injection of pickling agent, which has the risk of corroding equipment, polluting water bodies and operation safety; Ultrasonic descaling method: requires additional configuration of a high-frequency generating device, increasing system complexity and energy consumption; Mechanical scraping method: although continuous descaling can be achieved, the direct contact between the scraper and the heating tube can cause surface damage, significantly increasing the risk of leakage after long-term operation.

[0004] The above schemes do not solve the contradiction between descaling efficiency and equipment life, especially in the green hydrogen industry chain, which puts higher requirements on the continuous operation stability and low maintenance cost of the concentrated brine desalination device. SUMMARY

[0005] The purpose of the present application is to solve the problem of continuous operation stability and low maintenance cost of the concentrated brine desalination device in the prior art, and to provide a concentrated brine desalination device for green hydrogen energy industry chain utilization.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme: A concentrated brine desalination device for green hydrogen energy industry chain utilization, comprising: an evaporation tank with a deformable heating tube inside; a condenser with a liquid phase inlet connected to a concentrated brine source and a top part connected to the evaporation tank through a steam pipeline; a pure water collection barrel connected to the gas phase outlet of the condenser; The preheating concentrated brine temporary storage barrel is connected with the liquid phase outlet of the condenser at the inlet end and is communicated with the evaporation tank at the outlet end; The evaporation tank is fixedly provided with an upper mounting bracket and a lower mounting bracket; The upper end of the deformable heating pipe is rotationally connected with the upper mounting bracket, and the lower end is fixedly connected with the lower mounting bracket; Further comprising a driving shaft vertically mounted in the evaporation tank, the driving shaft is driven by a motor mounted on the top of the evaporation tank, and a linkage control mechanism is arranged between the driving shaft and the deformable heating pipe; The outer wall of the driving shaft is provided with a stirring part, and the linkage control mechanism is switchably connected with the driving shaft and the deformable heating pipe; When the device enters the descaling mode, the driving shaft periodically drives the upper part of the deformable heating pipe to rotate, so that the deformable heating pipe is elastically deformed to peel off the surface crystalline.

[0007] Preferably, the deformable heating pipe is in a spiral spring structure, and upper and lower ends thereof are respectively provided with an upper mounting ring and a lower mounting ring, an outer ring groove is formed in the upper mounting bracket, the upper mounting ring is nested in the outer ring groove and rotationally connected with the upper mounting bracket, and the lower mounting ring is fixedly connected with the lower mounting bracket.

[0008] Preferably, the stirring part is a plurality of spiral blades fixedly mounted on the outer wall of the driving shaft.

[0009] Preferably, the linkage control mechanism comprises: A sliding port and a shallow groove are arranged on the inner wall of the upper mounting bracket, the sliding port horizontally penetrates the inner and outer walls of the upper mounting bracket, and the shallow groove is located at a position corresponding to the sliding port and is provided with transition inclined surfaces at both ends; A positioning rod is arranged on the inner wall of the upper mounting ring, and the end thereof extends into the sliding port and abuts against a limit position of one side of the sliding port in the initial elastic state of the deformable heating pipe; An elastic telescopic rod is arranged on the outer wall of the driving shaft, and the telescopic end thereof is provided with a guide wheel and a one-way blocking block, and the one-way blocking block only allows one-way deflection.

[0010] Preferably, the one-way blocking block is in an L-shaped structure, and the short side thereof is close to the end face of the elastic telescopic rod to realize one-way limiting.

[0011] Preferably, the stroke length of the sliding port and the torsion angle of the upper end of the deformable heating pipe are in a linear relationship, and the torsion angle corresponding to the end of the stroke is 100°-170°.

[0012] Preferably, a partition plate is arranged in the condenser to divide the condenser into a condensation zone and a secondary preheating zone which are communicated at the top, a serpentine condensation pipe is arranged in the condensation zone, and the inlet and outlet of the serpentine condensation pipe serve as the gas phase inlet and outlet of the condenser and are connected with the steam pipeline and the pure water collecting barrel, respectively.

[0013] Preferably, the condenser outer cover is a transparent cover exposing the secondary preheating area, the partition plate is provided with a heat absorption layer on one side of the secondary preheating area, and the liquid phase inlet of the condenser is located at the bottom of the condensing area, and the liquid phase outlet is located at the bottom of the secondary preheating area.

[0014] Compared with the prior art, the present application has the following advantages: 1. The present application adopts a non-contact self-cleaning technology. By periodically twisting the deformable heating pipe through the driving shaft and utilizing the elastic potential energy of the spiral spring-like structure of the deformable heating pipe, high-frequency micro-deformation is generated. The salt scale on the surface of the deformable heating pipe is broken and automatically falls off under the action of alternating stress waves. The entire process does not require mechanical scrapers or chemical reagents to contact the surface of the pipe, resulting in zero mechanical damage and no chemical corrosion on the surface of the heating pipe. This solves the industry-wide problem of reduced pipe pressure caused by metal scratches in traditional mechanical scraping methods and equipment corrosion caused by acid and alkali residues in chemical cleaning methods.

[0015] 2. The present application condenses steam in the condenser by using concentrated brine, fully utilizes the steam heat to preheat the concentrated brine when cooling the steam, and through the heat absorption plate to absorb the sunlight heat to preheat the concentrated brine in the secondary preheating area. This solves the problem of low evaporation efficiency caused by insufficient preheating of concentrated brine in traditional devices, reducing energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device overall structure schematic diagram; Figure 2 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device cross-sectional structure schematic diagram; Figure 3 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device front view structure schematic diagram; Figure 4 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device variable heating pipe structure schematic diagram; Figure 5 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device variable heating pipe structure schematic diagram; Figure 3 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device variable heating pipe structure schematic diagram; Figure 6 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device one-way blocking block structure schematic diagram in normal mode; Figure 7 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device one-way blocking block structure schematic diagram in descaling mode; Figure 8 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device one-way blocking block structure schematic diagram in descaling mode; Figure 2 The present application proposes a green hydrogen energy industry chain utilization of concentrated brine desalination device one-way blocking block structure schematic diagram in descaling mode; Figure 9 For Figure 3 The structural schematic diagram along the section of B-B'.

[0017] In the figure: 1, evaporation tank; 2, condenser; 21, steam pipeline; 22, partition plate; 23, serpentine condensing pipe; 3, pure water collecting barrel; 4, motor; 5, preheating concentrated brine temporary storage barrel; 6, deformable heating pipe; 61, upper mounting ring; 62, lower mounting ring; 63, positioning rod; 7, upper mounting frame; 71, sliding port; 72, shallow groove; 73, transition slope; 8, lower mounting frame; 9, linkage control mechanism; 10, driving shaft; 101, stirring part; 102, elastic telescopic rod; 103, guide wheel; 104, one-way blocking piece. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0019] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0020] Referring to Figures 1-9 A concentrated brine desalination device for green hydrogen energy industry chain utilization, comprising an evaporation tank 1, a condenser 2, a pure water collecting barrel 3 and a preheating concentrated brine temporary storage barrel 5.

[0021] The evaporation tank 1 is provided with a deformable heating pipe 6, the concentrated brine is introduced into the evaporation tank 1, and the concentrated brine is evaporated to generate water vapor through the deformable heating pipe 6, wherein the electric energy consumed by the deformable heating pipe 6 is generated by offshore wind power and solar power, so as to realize green and pollution-free; the liquid phase inlet of the condenser 2 is connected with the concentrated brine source, and is connected with the top of the evaporation tank 1 through the steam pipeline 21, the steam generated in the evaporation tank 1 is introduced into the condenser 2, the concentrated brine is introduced into the condenser 2 as a cooling liquid, the steam is liquefied after being cooled, and pure water is obtained to realize the desalination of the concentrated brine; the pure water collecting barrel 3 is connected with the gas phase outlet of the condenser 2, and the liquefied pure water is collected in the pure water collecting barrel 3; the inlet end of the preheated concentrated brine temporary storage barrel 5 is connected with the liquid phase outlet of the condenser 2, and the outlet end is connected with the evaporation tank 1, the concentrated brine and the steam in the condenser 2 are used for heat exchange, the temperature is increased, the preheating of the concentrated brine is realized, the preheated concentrated brine enters the preheated concentrated brine temporary storage barrel 5, and the concentrated brine is supplemented into the evaporation tank 1, and since the concentrated brine is preheated, the energy consumption can be effectively reduced, and the evaporation efficiency is improved, and it should be noted that the evaporation tank 1 is provided with a slag discharge pipe at the bottom, which is used for discharging sea salt crystals and other impurities.

[0022] The evaporation tank 1 is provided with an upper mounting frame 7 and a lower mounting frame 8, the upper mounting frame 7 and the lower mounting frame 8 are annular structures, the upper mounting frame 7 is L-shaped in cross section, the upper end of the deformable heating pipe 6 is rotatably connected with the upper mounting frame 7, and the lower end is fixedly connected with the lower mounting frame 8.

[0023] Referring to Figure 2 and 4 , the deformable heating pipe 6 is in the form of a spiral spring, and the upper and lower ends thereof are respectively provided with an upper mounting ring 61 and a lower mounting ring 62, the upper mounting ring 61 and the lower mounting ring 62 are used as upper and lower supporting members of the deformable heating pipe 6, and are annular structures, an outer ring groove is formed in the upper mounting frame 7, the upper mounting ring 61 is nested in the outer ring groove and is rotatably connected with the upper mounting frame 7, and the lower mounting ring 62 is fixedly connected with the lower mounting frame 8.

[0024] Specifically, the high concentration of salt in the concentrated brine is prone to form a hard crystalline layer on the surface of the deformable heating tube 6 during the evaporation process. The thickness of the salt scale increases by 1mm, and the heat transfer coefficient decreases by about 20% to 30%, which significantly increases the energy consumption. The deformable heating tube 6 is made of elastic material and has a spiral spring structure. The lower mounting ring 62 is fixed in position, and when the upper mounting ring 61 rotates, the deformable heating tube 6 will be twisted in the circumferential direction. Due to the spring shape of the deformable heating tube 6, the pitch of the deformable heating tube 6 will decrease and the number of turns will increase due to the rotation of the upper mounting ring 61. Therefore, the spiral diameter of the deformable heating tube 6 will also decrease without changing the axial length of the deformable heating tube 6. Each part will undergo a slight deformation, and the salt crystals on the surface of the deformable heating tube 6 have a brittle structure. When the deformable heating tube 6 deforms, the structure of the salt crystals will be destroyed, thereby losing adhesion and naturally falling off. Therefore, the surface of the deformable heating tube 6 can be cleaned, and the thermal efficiency is improved.

[0025] With reference to Figures 2-8 The concentrated brine desalination device further comprises a driving shaft 10 vertically installed in the evaporation tank 1. The driving shaft 10 is driven by the motor 4 installed at the top of the evaporation tank 1. The driving shaft 10 and the deformable heating tube 6 are provided with a linkage control mechanism 9.

[0026] The linkage control mechanism 9 has two working modes during the rotation of the driving shaft 10 driven by the motor 4. One is a conventional mode, and the other is a descaling mode. In the embodiment, the conventional mode is that the driving shaft 10 rotates clockwise, and the descaling mode is that the driving shaft 10 rotates counterclockwise. Through the switching of the two modes under suitable working conditions, it is ensured that in the conventional mode, the evaporation is efficient, and in the descaling mode, the salt scale on the surface of the deformable heating tube 6 is quickly removed. The descaling mode is only started after the evaporation efficiency is reduced, so as to avoid long-time operation and cause metal fatigue damage to the deformable heating tube 6.

[0027] When the device enters the descaling mode, the driving shaft 10 periodically drives the upper part of the deformable heating tube 6 to rotate, so that the deformable heating tube 6 deforms elastically to peel off the surface crystals.

[0028] The driving shaft 10 is provided with a stirring part 101. The linkage control mechanism 9 is switchably connected to the driving shaft 10 and the deformable heating tube 6. When the driving shaft 10 works, it will drive the stirring part 101 to rotate, thereby stirring the concentrated brine in the evaporation tank 1, so as to improve the uniformity of the heating of the concentrated brine and improve the evaporation effect.

[0029] The stirring part 101 is a plurality of spiral blades fixedly installed on the outer wall of the driving shaft 10, which is conducive to driving the concentrated brine to flow.

[0030] With reference to Figures 2-8 The linkage control mechanism 9 comprises: The slide opening 71 and the shallow groove 72 are arranged on the inner wall of the upper mounting frame 7, the slide opening 71 transversely penetrates the inner and outer walls of the upper mounting frame 7, the shallow groove 72 is located at the corresponding position of the slide opening 71 and is provided with transition inclined surfaces 73 at both ends, and the shallow groove 72 is located on the inner side of the upper mounting frame 7; The positioning rod 63 is arranged on the inner wall of the upper mounting ring 61, the end of the positioning rod 63 extends into the slide opening 71 and abuts against the limit position of one side of the slide opening 71 in the elastic initial state of the deformable heating tube 6, and the limit position is not coincided with the transition inclined surface 73; The elastic telescopic rod 102 is arranged on the outer wall of the driving shaft 10, the elastic telescopic rod 102 is connected between two coaxially sleeved square tubes through a spring, the telescopic end of the elastic telescopic rod 102 is provided with a guide wheel 103 and a one-way blocking block 104, under the action of the spring, the guide wheel 103 at the end of the elastic telescopic rod 102 abuts against the inner wall of the upper mounting frame 7, flexible movement is realized through the guide wheel 103, the one-way blocking block 104 only allows one-way deflection, the one-way limiting through the one-way blocking block 104 produces different actions with the positioning rod 63 in different action directions, and the state switching of the linkage control mechanism 9 is realized.

[0031] Referring to Figures 2-8 , the one-way blocking block 104 is in an L-shaped structure, the short side of the one-way blocking block 104 is close to the end face of the elastic telescopic rod 102 to realize one-way limiting, the rotation shaft of the one-way blocking block 104 is located at the bending position, and a torsional spring is arranged to make the short side of the one-way blocking block 104 tend to be close to the end face of the elastic telescopic rod 102.

[0032] As Figure 7 shown, when the decontamination mode, the driving shaft 10 rotates counterclockwise: The guide wheel 103 slides along the inner wall of the upper mounting frame 7 to the transition inclined surface 73, then extends into the shallow groove 72; the one-way blocking block 104 forms rigid abutment with the positioning rod 63, pushes the positioning rod 63 to move from the first limit position to the second limit position of the slide opening 71, the limit position is coincided with the transition inclined surface 73; when reaching the second limit position, the guide wheel 103 contacts the other side transition inclined surface 73 and exits the shallow groove 72, the one-way blocking block 104 is disengaged from the positioning rod 63; the deformable heating tube 6 is elastically reset to drive the positioning rod 63 to return to the first limit position; As Figure 6 shown, when the decontamination mode, the driving shaft 10 rotates counterclockwise: The one-way blocking block 104 can freely deflect to pass the positioning rod 63, and does not form driving connection with the positioning rod 63.

[0033] The stroke length of the slide opening 71 and the torsion angle of the upper end of the deformable heating tube 6 are in a linear relationship, the corresponding torsion angle at the end of the stroke is 100°-170°, two groups of slide openings 71 are symmetrically arranged in the embodiment, when it is necessary to increase the torsion angle, only one group of slide openings 71 can be arranged, so that the torsion angle is increased to 280°-350°.

[0034] Referring to Figures 1-3 and Figure 9 The condenser 2 is internally provided with a partition plate 22 to divide the condenser 2 into a condensing area and a secondary preheating area which are in communication at the top, and the condensing area is provided with a serpentine condensing pipe 23, and the inlet and outlet of the serpentine condensing pipe 23 are connected with the steam pipeline 21 and the pure water collecting barrel 3 respectively as the gas phase inlet and outlet of the condenser 2.

[0035] The original concentrated brine enters from the bottom inlet of the condenser 2, and absorbs the steam condensation latent heat when flowing through the outer wall of the serpentine condensing pipe 23 to realize the cooling of the steam to make it liquefied, complete the concentrated brine desalination operation, and at the same time, the concentrated brine used for cooling is heated to complete the preliminary preheating.

[0036] The outer cover of the condenser 2 is a transparent cover to expose the secondary preheating area, the partition plate 22 is provided with a heat absorption layer on one side of the secondary preheating area, and the liquid phase inlet of the condenser 2 is located at the bottom of the condensing area, and the liquid phase outlet is located at the bottom of the secondary preheating area.

[0037] The preheated concentrated brine overflows through the top communication part of the partition plate 22 into the secondary preheating area, and under the action of the heat absorption layer, the temperature is further increased after staying for 2-3 minutes, and the two-stage preheating reduces the temperature difference of the concentrated brine entering the evaporation tank 1, thereby reducing the evaporation energy consumption.

[0038] The specific working principle of the application is as follows: The concentrated brine is introduced into the evaporation tank 1, and at the same time, the original concentrated brine enters the condenser 2 from the bottom inlet of the condenser 2, and the deformable heating pipe 6 is electrically heated by using the electricity provided by the offshore wind power and solar power to make the concentrated brine in the evaporation tank 1 evaporate to generate water vapor.

[0039] The motor 4 drives the driving shaft 10 to rotate, and the stirring part 101 on the outer wall of the driving shaft 10 rotates to stir the concentrated brine in the evaporation tank 1, improve the uniformity of the heating of the concentrated brine, and enhance the evaporation effect.

[0040] The original concentrated brine entering the condenser 2 absorbs the steam condensation latent heat when flowing through the outer wall of the serpentine condensing pipe 23 to realize the cooling of the steam to make it liquefied, complete the preliminary preheating. At this time, the steam is in the condensing area of the condenser 2, and exchanges heat with the concentrated brine through the serpentine condensing pipe 23 to condense into pure water, and the pure water flows into the pure water collecting barrel 3 through the gas phase outlet of the condenser 2 to realize collection.

[0041] The preheated concentrated brine overflows through the top connecting part of the partition plate 22 into the secondary preheating zone. Under the action of the heat absorption layer arranged on one side of the partition plate 22 in the secondary preheating zone, the temperature of the concentrated brine is further increased after 2-3 minutes of residence, and the double-stage preheating is completed. The preheated concentrated brine flows out from the liquid phase outlet of the condenser 2 and enters the preheated concentrated brine temporary storage barrel 5. The preheated concentrated brine in the preheated concentrated brine temporary storage barrel 5 is connected to enter the evaporation tank 1 for concentrated brine replenishment.

[0042] When the evaporation efficiency is reduced, it is judged that salt scale is formed on the surface of the deformable heating pipe 6, and the descaling mode is started to rotate the driving shaft 10 counterclockwise by the motor 4.

[0043] When the driving shaft 10 rotates, the guide wheel 103 at the end of the elastic extension rod 102 slides along the inner wall of the upper mounting frame 7 to the transition slope 73 and then extends into the shallow groove 72.

[0044] The one-way blocking block 104 and the positioning rod 63 form a rigid abutment, and the positioning rod 63 is pushed from the first limit position to the second limit position of the sliding port 71. When the guide wheel 103 contacts the other side transition slope 73 after reaching the second limit position, the one-way blocking block 104 and the positioning rod 63 are disengaged, and the deformable heating pipe 6 is elastically reset to drive the positioning rod 63 to return to the first limit position. When the deformable heating pipe 6 deforms, the structure of salt crystals is destroyed, loses adhesion and naturally falls off, achieving cleaning of the surface of the deformable heating pipe 6.

[0045] After the descaling is completed, the normal mode is switched back to rotate the driving shaft 10 clockwise by the motor 4. At this time, the one-way blocking block 104 can be freely deflected to pass through the positioning rod 63 without forming a driving connection with the positioning rod 63. The deformable heating pipe 6 remains in a normal state, and the device continues to perform efficient concentrated brine desalination work.

Claims

1. A concentrated brine desalination device for the industrial-scale utilization of green hydrogen energy, characterized in that, include: Evaporator (1), which is equipped with deformable heating tube (6); The condenser (2) has its liquid inlet connected to a concentrated brine source and is connected to the top of the evaporator (1) via a steam pipe (21); Pure water collection tank (3) is connected to the gas phase outlet of condenser (2); The preheated concentrated brine storage tank (5) is connected to the liquid phase outlet of the condenser (2) at the inlet end and to the evaporator (1) at the outlet end. The evaporator (1) is fixedly installed with an upper mounting bracket (7) and a lower mounting bracket (8). The upper end of the deformable heating tube (6) is rotatably connected to the upper mounting bracket (7), and the lower end is fixedly connected to the lower mounting bracket (8); It also includes a drive shaft (10) vertically installed in the evaporator (1), the drive shaft (10) being driven by a motor (4) installed on the top of the evaporator (1), and a linkage control mechanism (9) being provided between the drive shaft (10) and the deformable heating tube (6). The outer wall of the drive shaft (10) is provided with a stirring element (101), and the linkage control mechanism (9) can switch between the drive shaft (10) and the deformable heating tube (6). When the device enters the descaling mode, the drive shaft (10) periodically drives the upper part of the deformable heating tube (6) to rotate, causing the deformable heating tube (6) to undergo elastic deformation to peel off the surface crystals.

2. The concentrated brine desalination device for the industrial-scale utilization of green hydrogen energy according to claim 1, characterized in that, The deformable heating tube (6) has a spiral spring-like structure, with an upper mounting ring (61) and a lower mounting ring (62) at its upper and lower ends, respectively. The upper mounting frame (7) has an outer ring groove, and the upper mounting ring (61) is nested in the outer ring groove and rotatedly connected to the upper mounting frame (7). The lower mounting ring (62) is fixedly connected to the lower mounting frame (8).

3. The concentrated brine desalination device for the industrial-scale utilization of green hydrogen energy according to claim 1, characterized in that, The stirring component (101) consists of multiple spiral blades fixedly installed on the outer wall of the drive shaft (10).

4. The concentrated brine desalination device for the industrial-scale utilization of green hydrogen energy according to claim 1, characterized in that, The linkage control mechanism (9) includes: A sliding opening (71) and a shallow groove (72) are provided on the inner wall of the upper mounting frame (7). The sliding opening (71) extends horizontally through the inner and outer walls of the upper mounting frame (7). The shallow groove (72) is located at the corresponding position of the sliding opening (71) and has transition slopes (73) at both ends. A positioning rod (63) is provided on the inner wall of the upper mounting ring (61), the end of which extends into the slide (71) and abuts against the extreme position of one side of the slide (71) in the elastic initial state of the deformable heating tube (6). An elastic telescopic rod (102) is provided on the outer wall of the drive shaft (10), and its telescopic end is provided with a guide wheel (103) and a one-way blocking block (104). The one-way blocking block (104) only allows one-way deflection.

5. A concentrated brine desalination device for the industrial-scale utilization of green hydrogen energy according to claim 4, characterized in that, The one-way blocking block (104) has an L-shaped structure, and its short side is close to the end face of the elastic telescopic rod (102) to achieve one-way limiting.

6. A concentrated brine desalination device for the industrial-scale utilization of green hydrogen energy according to claim 5, characterized in that, The stroke length of the slide (71) is linearly related to the torsion angle of the upper end of the deformable heating tube (6), and the torsion angle corresponding to the end of the stroke is 100°-170°.

7. A concentrated brine desalination device for the industrial-scale utilization of green hydrogen energy according to claim 1, characterized in that, The condenser (2) is provided with a partition plate (22) to divide the condenser (2) into a top-connected condensing zone and a secondary preheating zone. The condensing zone is provided with a serpentine condensing tube (23). The inlet and outlet of the serpentine condensing tube (23) serve as the gas phase inlet and outlet of the condenser (2), and are respectively connected to the steam pipeline (21) and the pure water collection tank (3).

8. A concentrated brine desalination device for the industrial-scale utilization of green hydrogen energy according to claim 7, characterized in that, The outer cover of the condenser (2) is a transparent cover that exposes the secondary preheating zone. The partition plate (22) is provided with a heat-absorbing layer on one side of the secondary preheating zone. The liquid phase inlet of the condenser (2) is located at the bottom of the condensing zone, and the liquid phase outlet is located at the bottom of the secondary preheating zone.

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